Dave,that would be a no-no,unless you cut a curved windshield in half and added a centre bar.
There is actually a discussion elsewhere on the 'bolt about this if that's what prompted your question.
The later one piece cabs used different roof and cowl pressings.
The roof lost it's peak at the front centre,and had a curved pinch weld area as did the cowl.
As far as I'm aware the rest of the cab was pretty much the same as the pre-53.
I have seen 47-53 trucks with a post 53 front clip and vice versa,so the front clips will interchange.
Last edited by jockbolter50; 04/14/2012 12:47 PM.